Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Moment of Inertia? Potential and Kinetic Energy? Anybody awake?
- riseofphoenix
- · Replies 3 ·
What is the Sign Convention for Work Done on a Gas in an Isothermal Expansion?
- ed2288
- · Replies 9 ·
Collision in two dimensions problems
- madlin
- · Replies 1 ·
Potential of a non-uniform charged rod
- AJDangles
- · Replies 5 ·
Determine Mass of object for no motion on ramp
- SinghTjay
- · Replies 1 ·
Finding Differential Equation for Circuit: Help Needed!
- ur5pointos2sl
- · Replies 2 ·
Time for a ball on string to travel around a pole.
- Nny
- · Replies 1 ·
Solve F=ma Concept: Urgent Help Needed! Where Did I Go Wrong?
- riseofphoenix
- · Replies 5 ·
Calculating Electricity Consumption: From KWhr to kW and Units
- rahuld.exe
- · Replies 1 ·
Solve Newtons' Laws Problems with Kinematics Equations for Homework
- whoareyou
- · Replies 9 ·
Can a Rocket Reach the Sound Barrier Without Breaking Internal Equipment?
- monikraw
- · Replies 3 ·
Help with Kinetic Energy and Time
- kgianqu2
- · Replies 1 ·
How to calculate distance when there's a changing force?D:
- monikraw
- · Replies 2 ·
Why Do Different Sources Show Varying Electric Flux Equations?
- Jimmy84
- · Replies 3 ·
A strange kind of straight line kinematics with uniform acceleration.
- ZamielTheGrey
- · Replies 9 ·
Constant Velocity Challenge Problem
- physgal1576
- · Replies 17 ·
Finding a new speed after adding a friction force? Help
- monikraw
- · Replies 5 ·
Solving Box Motion with Applied Force
- uncensored188
- · Replies 13 ·
Why does substitution F = ma in this problem not work?
- Nano-Passion
- · Replies 8 ·
What is the velocity of a pendulum when impacted by another mass?
- TheFerruccio
- · Replies 3 ·
How Does Hitting a Wall Affect Kinetic Energy?
- pxp004
- · Replies 1 ·
A rotating container injected with a liquid
- rbwang1225
- · Replies 4 ·
What are the equations for calculating equivalent resistance in a circuit?
- rbwang1225
- · Replies 8 ·
What is the Image Height for a Converging Lens and Diverging Lens System?
- Incognitopad
- · Replies 12 ·
Problem regarding refraction of light question
- silvercrow
- · Replies 6 ·
Calculating the lifetime of a particle
- Takuza
- · Replies 1 ·
Max EMF in a Model AC Generator Coil
- mydoghenry
- · Replies 3 ·
Momentum of golf ball and basketball
- Delta Sheets
- · Replies 9 ·
Work Required for Adiabatic Compression
- chris_avfc
- · Replies 6 ·
Mechanic about wood block, friction and pulley
- stranger123
- · Replies 1 ·
Mechanism that causes tension and normal force?
- InertialRef
- · Replies 3 ·
Which Formulas Solve These Physics Problems?
- zoiberg137
- · Replies 1 ·
What Is the Angle Between Velocity Vector and Radius-Vector of Part A at 4RE?
- assaftolko
- · Replies 3 ·
Please help with formulas for take home test due tomorrow.
- revit
- · Replies 1 ·
Weight Distribution: Solving for Tension in a Hawser System
- lendav_rott
- · Replies 4 ·
Need help on an object acceleration homework problem
- Physicshw
- · Replies 7 ·
A sled is being pulled accross horizontal, snow covered ground
- smaan
- · Replies 5 ·
Time and height in a freefall problem
- Glyper
- · Replies 12 ·
How Do You Solve Orbital Mechanics Problems Involving Central Forces?
- Otto31
- · Replies 1 ·
Forces of a wrecking ball against a wall at rest.
- physicalConst
- · Replies 3 ·
Calculating Time Dilation at Half the Speed of Light
- Naoki
- · Replies 7 ·
Finding kinetic energy after an elastic collision
- Delta Sheets
- · Replies 6 ·
How Do You Solve a Modified Atwood Machine Problem?
- kindor
- · Replies 1 ·
How Do You Determine the Direction of Rotation Using the Right-Hand Rule?
- BigJon
- · Replies 3 ·
What happens to the speed of charge carriers when going through a resistor
- ezadam
- · Replies 12 ·
Find acceleration vector of a car travelling on a circular path
- Phys121VIU
- · Replies 2 ·
Non-Uniform Distribution of Charge on a Rod
- mouzis
- · Replies 1 ·
Magnitude and angle of particle direction-
- physics131
- · Replies 1 ·
Velocities and momentum after explosions
- Delta Sheets
- · Replies 1 ·
Atoms of Julius Caesar in a Caesar Salad (seriously)
- ieatplaydo
- · Replies 1 ·
Inelastic Collision: Threshold Energy
- a.man
- · Replies 2 ·
Why Is My Calculated Velocity at the Swing's Apex Incorrect?
- ryho1092
- · Replies 3 ·
How Far Will a Cart Roll on Sand and Gravel? | Work/Energy Question
- bdh2991
- · Replies 1 ·
Conservative forces and Mechanical Energy
- bjudia
- · Replies 1 ·
Tension of strings at different angles:
- mms05
- · Replies 7 ·
Pottery wheel, angular acceleration, and required speed
- SereneKi
- · Replies 1 ·
Solving Power Equation: Melting an Ice Cube
- dolpho
- · Replies 4 ·
Kinetic and Potential Energy with acceleration
- salthegemini
- · Replies 1 ·
How Does Centrifugal Force Compare to Gravity in Car Cornering Dynamics?
- lendav_rott
- · Replies 10 ·
Grade 11 Physics, Need resources
- mat1101
- · Replies 4 ·
Solve Kinematic Equations for Automobile Braking
- Physics 134
- · Replies 2 ·
Determining Orbital Period of a Planet
- polskamafia
- · Replies 3 ·
Kinematic Equations (Constant Acceleration)
- Physics 134
- · Replies 1 ·
Given Maximum Acceleration calculate angle θ where Fnet=0
- psychochef
- · Replies 3 ·
Tension in of string between two boxes with friction.
- psychochef
- · Replies 4 ·
Calculating Work Done by Friction in a Circular Track
- Treefolk
- · Replies 2 ·
Rank the velocities of the balls
- omc1
- · Replies 3 ·
Calculate Change in Momentum of 4.8 kg Mass Launched at 55°
- omc1
- · Replies 6 ·
I really appreciate the help.Finding Force in Nonuniform Circular Motion
- phyzz
- · Replies 34 ·
Two Blocks Connected by a Massless String Over a Pulley
- RadicalAlchmy
- · Replies 1 ·
Find B given distance and direction from vector A
- WinstonB
- · Replies 7 ·
Electrostatics questions, parallel plates, force, field
- skg94
- · Replies 6 ·
LIL 5 year old boy falling a 50 feet to another persons arms
- kadaj6
- · Replies 17 ·
Tension and ball of mass problem
- Dumbledore211
- · Replies 26 ·
Solving Work Needed to Pull Chain On Frictionless Table
- NasuSama
- · Replies 17 ·
Determining the speed of the bullet after a collision
- lendav_rott
- · Replies 2 ·
Calculating area of a parallelogram defined by 2 vectors
- WinstonB
- · Replies 3 ·
Solving Plank Pivot Homework: Force Magnitude & Direction
- shivam jain
- · Replies 1 ·
What is the least amount of force needed to pull a board out from under a box?
- Toranc3
- · Replies 1 ·
Explosion of firecracker on pond
- omc1
- · Replies 10 ·
Thermodynamics/ideal gas question
- doctordiddy
- · Replies 7 ·
Conservation of angular momentum axis
- shivam jain
- · Replies 2 ·
Torque on a current carrying coil with an applied frictional force?
- discofmj
- · Replies 1 ·
A ball being shot from level ground with a twist
- mooha
- · Replies 1 ·
Calculating Current using Kirkoff's Rules
- MasterVivi
- · Replies 7 ·
Projectile Motion Help: Solving Cannon Ball Problems
- nando94
- · Replies 1 ·
Solve Shear Force & Moment Equation Homework
- tj1989
- · Replies 1 ·
Pressure Gradient in Hydrostatic Equilibrium
- SHISHKABOB
- · Replies 2 ·
Conical Pendulum, find tension, radial force, speed, period, and angular speed
- LibGirl17
- · Replies 1 ·
A pair of perpendicular vectors
- ArcherofScience
- · Replies 3 ·
Trucks travels beneath an airplane .
- ArcherofScience
- · Replies 3 ·
Out of 2 oscillators, which one decays to .1A first?
- cdot
- · Replies 3 ·
Lenz's law for point charge in time varying magnetic field?
- cfitzU2
- · Replies 1 ·
A Person in Free Fall Newton's 2nd Law
- dacabbo
- · Replies 1 ·
Finding Energy Given Mass and Height
- ChEgirl22
- · Replies 7 ·
Elevator Tension With Upward Acceleration
- SigFig
- · Replies 5 ·
Proportional ratios with exponents - Need Help
- kathleenhelen
- · Replies 3 ·
Collision with 3 particles and inelastic string
- Perpendicular
- · Replies 5 ·
How Does a Fly Impact the Speed of a Moving Car?
- omc1
- · Replies 3 ·
Symbols in the equation relating work, force, and distance moved
- Dr Moriarty
- · Replies 3 ·